I've heard mixed info on this. My general understanding right now is that you can jump putt outside 10 meters/ 30ft., now I've been starting to play league and never had any word of it, even played with a guy that stepped out the 30ft to make sure he was legal to do a jump putt.
Yet last weekend I was a good 75ft-85ft out and go for a jump putt and this guy that has been playing for 30yrs said that it was a illegal putt, that one foot has to be on the ground (my thought was then pros wouldn't use the term "jump putt" ever, cause they wouldn't be allowed to play it).
Here is my other question, he also claimed it was illegal, because I was about 2 foot behind my marker so when I landed I wouldn't pass my marker (cause I figured the guy would call that).Bascially the guy just wanted to be a jerk the whole round.
I looked in my little PDGA handbook and see no mention on jump putts, but I'm sure it's in there rules some where and would love to print it out and keep it on me to pull out in these already handful of times this has come up and seems to be a grey'ish area for a lot of players I'm ran into.